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ASoC: Explicitly clear WM8993 ramp controls on power down

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This helps ensure that the ramp logic is reset when powering back up.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
This commit is contained in:
Mark Brown 2010-12-14 11:25:18 +00:00
parent d88429a695
commit 83b6542533
1 changed files with 6 additions and 0 deletions
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6
sound/soc/codecs/wm8993.c
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@ -1030,6 +1030,12 @@ static int wm8993_set_bias_level(struct snd_soc_codec *codec,
WM8993_VMID_SEL_MASK | WM8993_BIAS_ENA,
0);
snd_soc_update_bits(codec, WM8993_ANTIPOP2,
WM8993_STARTUP_BIAS_ENA |
WM8993_VMID_BUF_ENA |
WM8993_VMID_RAMP_MASK |
WM8993_BIAS_SRC, 0);
#ifdef CONFIG_REGULATOR
/* Post 2.6.34 we will be able to get a callback when
* the regulators are disabled which we can use but